Segment Information (Reconciliation Of Adjusted EBITDA) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Nov. 30, 2017	Nov. 26, 2016	Aug. 31, 2017
Segment Reporting Information [Line Items]
Consolidated Adjusted EBITDA	$ 602	$ (2,819)
Stock-based compensation expense	(956)	(1,214)
Reduction (increase) to contingent consideration liability	(176)	1,013	$ (176)
China office start-up costs		(479)
ERP system implementation costs	(426)	(288)
Depreciation	(901)	(866)
Amortization	(1,395)	(722)
Loss from operations	(3,252)	(5,375)
Interest income	61	116
Interest expense	(549)	(620)
Loss before income taxes	(3,740)	(5,879)
Income tax benefit	1,348	1,921
Net loss	(2,392)	(3,958)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Consolidated Adjusted EBITDA	3,820	(220)
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Consolidated Adjusted EBITDA	$ (3,218)	$ (2,599)